People leaving a building en masse.
En masse is defined as something is done collectively, or that it is done all at the same time or all together.
An example of en masse is when a concert ends and the entire audience all tries to exit the stadium at the same time.
in a group; as a whole; all together
Origin of en masseFr, literally , in mass
In one group or body; all together: The protesters marched en masse to the capitol.
Origin of en masseFrench en in masse mass
- in a single body or group; together
- Alternative spelling of en masse.